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Main Title Salmonid distributions and temperature : prepared as part of EPA Region 10 Temperature Water Quality Criteria Guidance Development Project /
Author Dunham, J. ; Lockwood, J. ; Mebane, C.
Other Authors
Author Title of a Work
Lockwood, Jeff.
Mebane, Chris.
Dunham, Jason.
CORP Author Environmental Protection Agency, Seattle, WA. Region X.
Publisher U.S. Environmental Protection Agency, Region 10,
Year Published 2001
Report Number EPA 910-D-01-002
Stock Number PB2003-100561
OCLC Number 48962506
Subjects Water temperature--Northwest, Pacific ; Pacific salmon ; Pacific Northwest
Additional Subjects Water quality ; Salmon ; Pacific Northwest Region(United States) ; Distribution functions ; Ecology ; Habitability ; Animal behavior ; Temperature ; Scale(Ratio)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ESAD  EPA 910-D-01-002 3 copies Region 10 Library/Seattle,WA 06/10/2016
NTIS  PB2003-100561 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 22 pages : illustrations, diagrams, graphs ; 28 cm
Distributions of native salmonid fish in the Pacific Northwest are strongly tied to temperature conditions in their habitat. Salmonid populations have declined in conjunction with thermal changes and the loss and fragmentation of large and interconnected cold-water habitats. Temperature affects the health of not only individual fish but also entire populations and groups of species. Temperature changes have obvious direct effects, and also interact with other factors to indirectly affect salmonids. This paper is not intended to be an exhaustive review of the status or declines in salmonid populations or distributions. These are widely documented elsewhere. We briefly review some examples of declines in salmonid populations and habitats to provide some context for these issues, but our focus is not on declines per se. Furthermore, this issue paper is not intended to be an exhaustive review of the effects of temperature on salmonid distributions in the Pacific Northwest (see McCullough 1999). Rather, it is intended to describe a basic framework for thinking about salmonid distributions and appropriate biological criteria to protect salmonid populations from adverse effects of altered factors affecting thermal regimes. 1. Definition of a 'distribution; 2. Direct effects of temperature; 3. Indirects effects of temperature; 4. Relevance of scale; and 5. Importance of unoccupied habitat.
"May 2001." The Project workgroup consists of individuals from U.S. Environmental Protection Agency (Region 10), U.S. Forest Service, Washington Department of Ecology, National Marine Fisheries Service, U.S. Fish and Wildlife Service, Columbia River Inter-Tribal Fish Commission, Idaho Department of Environmental Quality, U.S. Geological Survey, and Oregon Department of Environmental Quality.
Contents Notes
"The technical workgroup developed five technical summaries on the major physical and biological considerations for developing water temperature standards: 1. thermal effects on salmonid physiology, 2. thermal effects on salmonid behavior, 3. interactions between multiple stressors ... affecting salmonids, 4. thermal influences on salmonid distribution, and 5. spatial and temporal variation in patterns of stream temperature."--